Detached Float
Hazard
Level 1 Obstacle
XP 100

The wooden raft shoots to the surface and strikes anyone in the water above it.

Hazard: Each raft detaches from its mooring chain when the water rises 10 feet above its anchor depth and rockets to the surface, endangering creatures in the square above and all adjacent squares.Perception     DC 20: The character notices the float beneath the water surface.     DC 25: The character notices the small float-and-pin mechanism that will detach the float from its mooring, and determines which squares are in danger.TriggerThe float detaches and attacks at the end of the round in which the water depth increases to 10 feet above its moored level. Each float attacks only once.AttackFree Action      Close burst 1
Target: All creatures in the squares immediately above the float, and in adjacent squaresAttack: +6 vs. ReflexHit: 1d6 damage, and the target is pushed 1 square and dazed until the end of its next turn.Countermeasures     Thievery DC 20: The release mechanism can be jammed with a successful Thievery check and a standard action, but you must be adjacent to the float to make the skill check (and the float may be submerged under 5 or 10 feet of water).

Published in Dungeon Magazine 181.